Keyless auto and alarm switch



ct.` 20 1925- f c. F.4 CHAMBERLIN KEYLEss AUTO AND ALARM swITcH original Filed May a, 19270 2 sheets-sneu 1 Octa 20,1925. 1.551.801

C. P. CHAMBERLIN mmmss AUTO' Aub LARI swncn Original FiledY lay e. 1920 v 2 sirens-snm 2 Patented Oct. 20, 1925.

UNITED STATES CHARLES BERCY CHAMBERLIN. or CAnGAaY, ALBERTA, CANADA.

xnYLEss AUTO AND ALARM swrrcir` Application led May 8, 1920, Serial To all whom it may Con/fem.'4

Be it known that I, CHARLES PERCY CHAMBERLIN, a subject of King George of Great Britain, and residing at Calgary, in the Province of Alberta, in the Dominion of Canada, have invented certain new and useful Improvements in a Keyless Auto and AlarmA Switch, of which the following is a specification. v

My invention relates to improvements in an automobile and alarm switch which can be operated only by an authorized person, and one in which no key is required. p

I accomplish this by the device illustrated in the accompanying drawings, in which* Fig. 1 is a detail view of the switch board showing the contacts vand Contact makers. Fig. 2 is a wiring diagram showing the arrangements of the various contacts mounted upon the switch board. Fig. 3 is a plan view with the cover removed. Fig. 4 is a View of the push buttons used in operating the switches, as they appear on the dash board. Fig. 5 is a vertical cross section through the device showing a Contact maker, and the device for rectifying the circuits, and stopping the ringing of the alarm. Fig. 6 is a broken detail, or fractional view of the alarm Contact breaker or circuit rectifier. Fig. 7 is a fractional view of the push button in relation to the release for the circuit rectifier.

Similar characters refer to similar parts throughout the several views.

A series of contacts are secured upon a non-conductor base 1, the lower line of contacts a, being connected in parallel to a battery b. A centre line of contacts C, are pro. vided which are in the form of brackets, and for the purposes of illustration, the brackets 2, and 3, are not electrically connected, the rest of the said brackets 4, being connected in parallel to an alarm d. Combination contact makers and breakers e, and f, are mounted in the said brackets, the pivotal points being of conducting material. An upper line of contacts g, and 7L, is provided, connected in series to an ignition device y', all of which contacts must be made before the ignition circuit is closed. The combination contact makers and breakers, consist of conductor bladesA 5, pivoted within the brackets 2, 3, and 4, the said blades having secured thereon non-conducting members 6. Secured in the upper end of these non-conductors are Contact blocks 7 which engage No. 379,847. Renewed. July 27, 1925.

the points of the upper line of contacts g, and h, and make electrical connection therebetween.` There is no electrical connection at any time between the contacts g, and h, andv either of the lines of contacts a, -and C, the electrical energy fiowing to the ignition device through each of the'upp'er line of contacts g, and t,`and the contact blocks 7. When'one of the blocks-7 disengages the Contact in the upper line, the ignition circuit 'fis inoperative. Operation of the switches .isvperformed by. a series of push but vtons8,`and 9, mountedthrough a face plate 10, secured in a convenient place within the car. All these push buttons are Vof similar construction, and consist of a cylindrical shank @terminating just within the switchrbox, and having a 'diametrically smaller rod mi, provided with a spring Z, which returns the push button to the normal position. The rod m, has a forked end, in which fork a lever fm, is pivoted, which lever a, is held horizontally until such time as it engages the non-conductor e, or f, by means of a guide 0, extending horizontally across the boX. The operating mediums'f, are provided with double recesses p, so that on depressing the buttons 9, the contacts on the ignition circuit may be made or broken as desired, these buttons being inoperative on the alarm circuit as there is no electrical connection between the centre line of contacts C, at 2, and 3, and the alarm circuit.

Operating mediums e, are provided with only one recess g, which is so arranged that upon depressing any of the buttons marked 8, Contact is broken on the ignition circuit, and made between the centre line of contacts C, and the battery contacts a, closing the alarm circuit. To stop the alarm and restore the ignition circuit for operation it is necessary to depress a pre-arranged button and while depressed to give it one quarter of one revolution. On doing this the lug r, secured to the push button, engages a spring lever s, which lever is mounted upon an open ended frame t, and normally engages a shoulder upon the guide o'. The revolving of the button releases the spring lever from such engagement, land a springe., lowers the front of the said frame t, and returns the lug r, to the normal position. The open ended frame t, is pivoted upon the end walls of the box and carries a triangular rod 11, which triangular rod is raised by the releasing of the spring lever s, and passing behind ythe projeeting ends of the levers 5A,V

to depress any of the pushbuttons as the ignition oon-taetsnhaving fbeen. broken, are retained in the broken position between the bar i111, and the-,aback of the oase, :and the alarm conta-ots cannot bemade as the levers are retained in ,the upper Contact .position 'f in front o-fthe bar lil; This bar fl-l, operates in slides 12, and has Aconnected to ita pull rodd 113,v terminating ,in .a button through the bottom' ofthe boX, and o n pulling this .button thel ,bar is lowered, the spring :lever s, refengagesth'e lug. on ,the guide` o, which is thenornal position. 'knyieombination of thepush buttons may be varranged fthe combination shown in the draivings--3being merely -for illustration.

'Havingthusrdescribed my invention what .I claimqiszf l vIn an article of 1the class deseribed, Va multiploity. `of r2push buttons mounted through@faceplate in the linterior ends oi break and Quake oontaet upon one Way aetion from .the push button, and a pre-deter- .mined `number of .knife .fswitohes adapted to make and break Contact upon successive operations from lthe push Abuttons.

2. In an ,article of the Aclass desoribed,pin Combination with amultiplioity of push buttons mounted througha face plat-e in the -interior ends .of- Which `are .pivoted short arms thel said short arms proyec-ting through ,a v

guideto engage upon Contact makersmounted` ,adjacentjthe said arms, a 'plurality of pivoted members adapted to simultaneously breakrrand ,make Contact fupon one Way. ac.- tion of the push button,v and a pre-:determined number of knife switches adapted to make andbreak Contactv upon successive foperatons from .the push buttons, 0f ,au i11- dependent means l#tor returnngfthe Aone Way pivoted lmen'i'bers tto their original position for co-,aetion with the push buttons.

y CHARLES PEiRGY CHAMBERLIN. 

